JP6285815B2 - Air conditioner or air conditioning system - Google Patents

Description

  The present invention relates to an air conditioner or an air conditioning system that harmonizes air in a living room.

  An air conditioner includes an indoor unit provided in a living room and an outdoor unit provided outside the room, and adjusts the temperature and humidity of the living room. A refrigerant cooled or heated by an outdoor unit provided outside the room is guided to the indoor unit, and heat exchange with room air is performed by the heat exchanger in the indoor unit, thereby cooling or heating the room. Furthermore, in addition to these cooling and heating functions, dehumidification is also performed to adjust the humidity in the room.

  Patent Document 1 includes a human body detector that detects the presence or absence of a person or an animal in a conditioned room, and the human body detector is operated for a predetermined period of time when the home condition is set in the conditioned room. There is described an air conditioner control device including a control device that notifies a predetermined center or terminal via a communication medium connected outside the room to be conditioned when movement of a person or animal cannot be detected.

JP 2000-346426 A

  For example, the user may forget to turn off the operation of the air conditioner, and the air conditioner may continue to operate without a person being detected in the conditioned room for a predetermined time. In this case, power consumption can be reduced by providing a function of stopping the operation of the air conditioner.

  However, even when a person is not detected in the conditioned room for a predetermined time, for example, when the user wants to be in a comfortable room after returning home and starts to operate the air conditioner from outside before returning home, In some cases, such as when no person is detected, the user may wish to continue operating the air conditioner.

  Therefore, the present invention provides an air conditioner that reduces power consumption without impairing the comfort of the user by properly using continuation and stop of the operation of the air conditioner when no person is detected in the conditioned room. For the purpose.

An air conditioner according to the present invention is an air conditioner that monitors and controls operation of a conditioned room, and includes a human detection unit that detects a person in the room, and a occupancy monitor that monitors the conditioned room. In this case, the current time is the first time zone in which the room to be conditioned is monitored, and a person is detected by the person detection means continuously for a second time during which the absence of a person is determined during operation of the air conditioner. Stop operation when not detected, continue operation other than this, and if the monitoring condition is not the occupancy monitor, determine the absence of a person during the operation of the air conditioner regardless of the first time zone Control means for stopping the operation when no person is detected by the person detection means for a second time period, and continuing the operation when a person is detected .

  ADVANTAGE OF THE INVENTION According to this invention, when a person is not detected in a to-be-conditioned room, the air conditioner which uses electric continuation and operation stop of an air conditioner separately, and reduces power consumption, without impairing a user's comfort is provided. be able to.

It is a block diagram which shows the structure of the air conditioner which concerns on Example 1. FIG. 1 is a side sectional view of an indoor unit according to Embodiment 1. FIG. It is a block diagram which shows the structure of the air conditioning system which concerns on Example 1. FIG. It is a flowchart figure which shows the control flow which implements the mode which notifies forgetting to erase information which concerns on Example 1. FIG. It is an operation | movement figure example for performing notification notification forgetting to erase information concerning Example 1. FIG. It is an image figure of GUI software for performing notification notification of forgetting to delete information according to the first embodiment. It is a flowchart figure which shows the control flow which implements the mode which notifies the state which the window etc. which concern on Example 2 are open. FIG. 10 is an image diagram of GUI software for performing environment setting according to a second embodiment. FIG. 10 is an image diagram of GUI software for performing environment setting according to a second embodiment. FIG. 10 is an image diagram of GUI software for displaying an environmental situation according to a second embodiment. It is a flowchart figure which shows the control flow which implements the mode which notifies the state which the window etc. are open when air-conditioning driving | operation operation is performed from the exterior which concerns on Example 3. FIG.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. However, the present invention is not limited to the following embodiments, and various modifications and applications are also possible within the technical concept of the present invention. It is included in the range.

  As shown in FIG. 1, the air conditioner is composed of an indoor unit 10 and an outdoor unit 12, and the indoor unit 10 is provided in a living room of a home or office, and air in the living room is cooled or heated. Air conditioning. The outdoor unit 12 that cools or heats the refrigerant sent to the indoor unit 10 is connected to the indoor unit 10 via a communication cable and a power supply cable (not shown), and transmits and receives control information through these cables. Supply.

  The remote controller 14 is operated by an operator and transmits a signal to the remote controller transmission / reception unit 16 of the indoor unit 10. The contents of this transmitted / received signal are commands such as an operation request, a change in set temperature, a timer, an operation mode change, and a stop request. Based on these signals, the air conditioner executes an air conditioning operation mode such as a cooling mode, a heating mode, and a dehumidifying mode. Alternatively, a configuration in which status information such as room temperature information, humidity information, and electricity bill information is transmitted from the remote controller transmission / reception unit 16 of the indoor unit 10 to the remote controller 14 may be employed.

  In addition, an indoor environment detection means 46 is installed at the lower portion near the center of the front panel 34 of the indoor unit 10 when viewed in the left-right direction. The indoor environment detection means 46 is an image processing means using an image pickup means and image processing software capable of detecting a human body, an activity amount detection sensor composed of a Fresnel lens and an infrared sensor, and an illuminance for detecting the brightness in the air-conditioned room. A sensor or the like is provided. These sensors only need to be provided in accordance with the specification of the function mode of the air conditioner.

  In addition, when using an imaging unit with a viewing angle that cannot capture the entire indoor space at once, the imaging unit may be configured to be driven in the left-right direction.

  The imaging means images the room where the indoor unit 10 is installed. The imaging means is, for example, a CCD (Charge Coupled Device) camera, and is installed in the lower part of the center of the front panel 34 in the left-right direction (see FIG. 1). Further, the camera is installed such that the optical axis of the lens is directed downward by a predetermined angle with respect to the horizontal line, and can appropriately capture the room in which the indoor unit 10 is installed.

  The driving means drives the camera in the left-right direction to change the indoor area imaged by the camera. For example, the camera is connected to a shaft of a stepping motor that is a driving means, and reciprocates within a predetermined angle range by the operation of the motor. In this case, the motor stops for imaging for each area obtained by dividing the range of the predetermined angle into a plurality of areas, and after imaging, resumes operation to direct the camera to the next area. Note that if the time required for imaging is sufficiently short compared with the driving speed of the camera, the stepping motor may be continuously operated. The driving means directs the camera to a position where the left area, the center area, and the right area of the room can be imaged every minute during the operation of the air conditioner. As a result, even if an inexpensive camera with a narrow viewing angle is used, it is possible to image a wide range of the room.

  Instead of the camera, it may be determined whether there is a person in the room by using a pyroelectric infrared sensor. Further, regardless of the brightness in the room, it may be determined whether there is a person in the room by using a thermopile instead of the camera. However, it is desirable to detect a person with a camera in order to avoid erroneously detecting a cat or dog as a person. In order to increase detection accuracy, a person may be detected using both a camera and a pyroelectric infrared sensor or a thermopile.

  FIG. 2 shows a side cross section of the indoor unit 10, and the housing base 22 accommodates internal structures such as a heat exchanger 24, a blower fan 26, and a filter 28. The heat exchanger 24 has a plurality of heat transfer tubes 24a, and heats the air taken into the indoor unit 10 by the blower fan 26 with the refrigerant flowing through the heat transfer tubes 24a to heat or cool the air. It is configured. The heat transfer tube 24a communicates with a refrigerant pipe (not shown) and constitutes a part of a known refrigerant cycle (not shown).

  The left and right wind direction plates 30 are in accordance with instructions from an operation control means (not shown) provided in the indoor unit 10, and a left and right wind direction plate motor (not shown) with a rotating shaft (not shown) provided at the lower part as a fulcrum. ). The vertical wind direction plate 32 is rotated by a vertical wind direction plate motor (not shown) with pivot shafts (not shown) provided at both ends as fulcrums according to instructions from the operation control means.

  The front panel 34 is installed so as to cover the front surface of the indoor unit 10 and is configured to be rotatable by a front panel motor (not shown) with the lower end as an axis. Incidentally, you may comprise the front panel 34 as what is fixed to a lower end.

  When the blower fan 26 shown in FIG. 2 rotates, the room air is taken in through the air suction port 36 and the filter 28, and the air heat-exchanged by the heat exchanger 24 is guided to the blowout air path. Furthermore, the air direction of the air guided to the blowout air path is adjusted by the right and left wind direction plates 30 and the up and down air direction plates 32 and is sent to the outside from the air blowing port 38 to air-condition the room.

  The air conditioner is not only a wall-mounted indoor unit 10 but also a floor-mounted indoor unit, a ceiling-embedded indoor unit, or a plurality of indoor units connected to one outdoor unit. An air conditioner may be used.

  FIG. 3 is a block diagram illustrating a configuration of an air conditioner including an air conditioner-side control unit 40 included in the indoor unit 10 and an external information terminal 42 such as a smartphone or a tablet PC. The load 44 of the air conditioner is, for example, for an indoor fan motor (not shown) provided in the indoor unit 10, a compressor motor (not shown) provided in the outdoor unit 12, or a left / right wind direction plate installed on the left / right wind direction plate 30. A motor (not shown) is included. These loads 44 are driven in accordance with a control drive signal from the control means 40.

  The air conditioner-side control means 40 of the indoor unit 10 is input with a detection signal of an indoor environment detection means 46 including a room temperature sensor, a humidity sensor, and other various sensors described above built in the indoor unit 10. . The air conditioner-side control means 40 communicates with the outdoor unit 12 for each set air conditioning operation mode to control the operation of the compressor and the like, and control the operation of the entire air conditioner, such as the management of the wind speed, wind direction, and air conditioning output. Is managed by the drive control unit 48. The drive control unit 48 includes a microcomputer, a ROM, an input / output LSI, and the like.

  In the present embodiment, a storage means 50 is provided separately from the storage means provided in the drive control section 48. In this storage means 50, various kinds of information, for example, the current indoor environment detection means are provided. 46 detection information, operation information and setting information executed in the previous air conditioning operation, detection information of the indoor environment detection means 46 at that time, and the like are stored. For example, as the indoor environment detection means 46, a thermopile that measures the radiant heat in the room, a light source identification sensor that identifies the living scene in the air-conditioned room by performing light source identification, and determines the living scene in the room from the pattern recognition of the environmental sound in the room A sound sensor is used.

  Further, a human detection means 47 is provided as the indoor environment detection means 42. For example, an image recognition sensor or the like that detects an occupant by photographing a room with a camera and performing face recognition and body recognition is used.

  The detailed operation control of the air conditioning operation is well known, and although not described here, operation control suitable for each air conditioner to which the present embodiment is applied is performed.

  Apart from the remote controller 14, the air conditioner side control means 40 is configured to enable information communication via an external information terminal 42 provided with voice recognition means, for example, a smartphone or tablet PC and a communication network IT such as the Internet. When the operation control information from the operator of the air conditioner is received through the external information terminal 42, the air conditioning operation, data communication, and the like are performed according to the received operation control information. As for this communication method, any communication method such as infrared communication, wireless LAN, JIGBEE, radio communication by specific low power radio, communication by FM radio wave or AM radio wave can be used.

  An operator of the air conditioner can transmit operation control information to the air conditioner side control means 40 of the indoor unit 10 of the air conditioner via the remote controller 14 or the external information terminal 42. Yes.

  The input from the operator to the external information terminal 42 includes manual input by key operation using the key 52, and voice utterance by the microphone 54 and voice recognition means (by voice recognition software) 56 provided in the external information terminal 42. It is possible to input by In addition, the external information terminal 42 can notify the operator of various information by including the speaker 58 for performing sound notification and the display unit 60 including a liquid crystal display.

  The external information terminal 42 includes an external information terminal side control means 62 inside, and input information from the key 52, the microphone 54 and the voice recognition means 56 is input, and these input information is input to the external information terminal side control means 62. It is calculated by the arithmetic device 66 provided and converted into a predetermined control signal. In this embodiment, the predetermined control signal is a control signal for instructing driving of the load of the air conditioner. The arithmetic unit 66 is composed of a microcomputer, a ROM, an input / output LSI, and the like.

  The external information terminal side control means 62 includes voice synthesis means (by voice synthesis software) 64, and can send driving information corresponding to the control signal to the speaker 58 to perform voice notification. In addition to the voice, the display unit 60 can notify the driving information by character data. Further, the external information terminal side control means 62 has a function of sending a notification signal sent from the air conditioner side control means 40 of the indoor unit 10 to the voice synthesis means 64 and converting it into voice data or converting it into display data. I have. Therefore, the alert information described later is notified by the speaker 58 or the display unit 60.

  Next, a description will be given based on the flowchart shown in FIG. 4, the operation diagram example shown in FIG. 5, and the image diagram of the GUI software shown in FIG. The flowchart of FIG. 4 shows a basic control flow of the present embodiment, and this control flow is executed by the air conditioner side control means 40. Hereinafter, the function will be described for each processing step. Note that it is possible to select whether or not to execute the mode for transmitting the forget-to-delete notification information. For example, by operating the external information terminal 42, the alert information is transmitted as shown in the image diagram of the GUI software shown in FIG. The mode can be switched on and off, and the monitoring condition 82, the monitoring time 83, and the notification time zone 84 may be displayed only when notification is set.

  In step S40, the current operating state of the air conditioner is determined. If it is determined in step S40 that the air-conditioning operation is not performed, the execution of the processing step of transmitting the alert information to the external information terminal 42 is omitted, and the process proceeds to END.

  If it is determined in step S40 that the air conditioning operation is performed, the process proceeds to step S41A. In step S41A, it is determined whether an in-room monitor is selected as the monitoring condition 82. If an in-room monitor is selected, the process proceeds to step S41B. When the occupancy monitor is not selected as the monitoring condition 82, the process proceeds to step S42. If it is determined in step S40 that the air-conditioning operation is performed, the monitoring condition 82 may be selected as shown in the image diagram of the GUI software shown in FIG.

  In step S41B, it is determined whether there is a person in the room. Whether or not there is a person in the room can be detected by the room environment detecting means 46. If the room is bright, the presence of the person can be detected by performing image recognition using a camera. On the other hand, when the room is dark, it is possible to detect the presence of a person by performing heat source recognition using a thermopile. If it is determined in step S41B that no person is present in the room, the process proceeds to step S42A. If it is determined that there is a person in the room, the processing step is skipped and the process proceeds to END. If continuous operation is selected as the monitoring condition 82 in step S41A, step S41B is omitted regardless of whether or not there is a person, and the process proceeds to step S42A.

  In step S42A, the notification time zone 84 is confirmed, and in step S43B, it is determined whether or not the current time is the set time zone. If the current time is in the set time zone, the process proceeds to step S43. If the current time is not in the set time period, the process proceeds to END. As the set time zone, always or time designation is selected, and a specific time zone (for example, 8:00 to 17:00) is selected. For example, when a person goes to work or school on a weekday and the time to leave the house is determined, setting a monitoring time can suppress false notifications. When the time designation is selected, the time item may be displayed only when the notification time zone 84 is designated as shown in the GUI software image diagram of FIG.

  In step S43, when the notification time zone is not set in step S42A or when it is determined that the time zone is set in step S42B, it is determined whether the monitoring time 83 has elapsed. As shown in the image diagram of the GUI software shown in FIG. 6, the monitoring time 83 can be selected. For example, it is possible to select up to 12 hours in units of 30 minutes. Send to.

  The example of the operation diagram shown in FIG. 5 is an example when the presence setting is set as the notification setting 81 and the monitoring condition 82, the monitoring time 83 is 60 minutes, and the time designation 8:00 to 17:00 is selected as the notification time zone 84. is there. In this example, when the air-conditioning state is in operation, no person is detected on the occupancy monitor, and the timer count is counted when three conditions that the current time is within the notification time zone 84 overlap (8:00). Start and notify at the set monitoring time (60 minutes) and at the time (9:00) when it has been forgotten to turn off.

  As described above, the air conditioner according to the present embodiment has the human detection means 47 for detecting a person in the room, the current time is the first time zone (notification time zone 84), and the air conditioner The control means 40 which stops a driving | operation when the person detection means 47 does not detect a person continuously for the 2nd time (monitoring time 83) during a driving | operation is provided.

  The current time may be based on the time when the second time (monitoring time 83) has elapsed since no person is detected by the person detecting means 47, and is counted when no person is detected by the person detecting means 47. It is good also as a reference | standard at the time of starting.

  Moreover, a time zone setting means for setting the first time zone (notification time zone 84) is provided. Also, a monitoring time setting means for setting the second time (monitoring time 83) is provided.

  The air conditioning system of the present embodiment includes a human detection unit 47 that detects a person in the room, a human detection unit 47 that is in the first time zone (notification time zone 84) and the current time is during operation of the air conditioner. An air conditioner having a monitoring means for counting when no person is detected at 47 and resetting the count when the person detecting means 47 is detected, and an external information terminal for operating the air conditioner. The external information terminal 42 is notified when the time counted by the means has passed the second time (monitoring time 83).

  In addition, the timer count starts when the two conditions when the air-conditioning operation is in progress and no person is detected by the occupant monitor overlap, and the time when the set monitoring time (60 minutes) continues is the notification time zone 84. If it is within the range, it may be determined that the user has forgotten to turn off the notification. That is, an air conditioner having a monitoring unit that performs counting when the person detecting unit 47 does not detect a person during operation of the air conditioner and resets the time counted when the person detecting unit 47 detects the person, And the external information terminal 42 for operating the harmony machine, the time counted by the monitoring means passes the second time (monitoring time 83), and the time when the monitoring means starts counting is the first time. If it is a band (notification time slot 84), the external information terminal 42 may be notified.

  In the air conditioning system of the present embodiment, the notification is performed when it is determined that the user has forgotten to turn it off. However, the operation of the air conditioner may be stopped instead of or together with the notification.

  Since steps S40, S41, S42, and S43 are independent conditions, the processing order may be changed. In the present embodiment, the case of operating using an external information terminal has been described. However, a mode for transmitting forgetting-notification information using another device such as the remote controller 14 may be executed.

  Next, the second embodiment will be described based on the flowchart shown in FIG. 7 and the image diagram of the GUI software shown in FIG. In the second embodiment, in addition to the first embodiment, when information on opening / closing of windows and the like is determined and it is determined that the vehicle is operating for a long time, the external information terminal is notified.

  The environment setting will be described with reference to an image diagram of GUI software shown in FIG. The user selects the shape of the L-shaped room using the layout selection button 91, and selects the size of the room using the size selection button 92. Furthermore, a factor that changes the space such as a window, a door, and a bran is added from the detail button 93 so that environment setting information in which the window, the door, and the bran are added to the floor plan as shown in FIG. 9 can be stored. Good. Then, the room shape based on the input item is displayed on the floor plan display unit 94. After the item is input, by pressing the transmission button 95, the input environment setting information is stored. The room layout may be detected using a camera at the time of installation of the air conditioner or every predetermined period and stored as environment setting information, or a plurality of floor plans stored in advance in an external information terminal or the like may be stored. Among them, the floor plan closest to the result of detecting the floor plan of the air-conditioned room using the camera may be stored as the environment setting information.

  In step S50, the current operating state of the air conditioner is determined. If it is determined in step S50 that the air-conditioning operation is not performed, the execution of the processing step of transmitting the alert information to the external information terminal 42 is omitted, and the process proceeds to END. If it is determined in step S50 that the air-conditioning operation is being performed, the process proceeds to step S51.

  In step S51, if it is determined that the floor plan stored as the environment setting information is the same as the information for detecting the space by the camera, the execution of the processing step is skipped and the process proceeds to END. If it is determined in step S51 that there is a difference between the floor plan stored as the environment setting information and the information detected by the camera in the space, the floor plan stored as the environment setting information and the information detected in the space by the camera are the same. Count the monitoring time until In step S52, it is determined whether a predetermined time has elapsed. If it is determined in step S52 that the monitoring time has elapsed, the process proceeds to step S53.

  In step S53, it is determined whether the temperature detected by the room temperature sensor of the indoor environment detection means 46 (hereinafter referred to as “room temperature”) is within a predetermined range from the set temperature. If the room temperature is not within the predetermined range from the set temperature, the process proceeds to step S54. If the room temperature is within a predetermined range from the set temperature, it is determined that the determination in step S51 is a false detection, and the process proceeds to END.

  Note that step S53 may be omitted. In this case, if it is determined in step S52 that the monitoring time has elapsed, the process proceeds to step S54.

  The set temperature does not include a state in which the set temperature is changed and the room temperature deviates from the set temperature based on the set temperature at the start of the monitoring time. In addition, it is good also considering the setting temperature at the time of detecting with a room temperature sensor as a reference instead of the setting temperature at the time of monitoring time start.

  In step S54, the external information terminal is notified that the air-conditioning operation is being performed with the window open. Further, the state where the window is open as shown in the GUI software image diagram shown in FIG. 10 may be displayed visually by updating the current state each time the update button is pressed. Also, the room temperature may be displayed. Moreover, in order to give an unpleasant feeling to a user when notification frequency increases too much, you may add the function which does not re-notify 24h from notification.

  Next, Embodiment 3 will be described based on the flowchart shown in FIG. In the third embodiment, in addition to the second embodiment, the external information terminal is notified when it is determined that a window or the like is opened when an operation is performed from outside the house.

  In step S60, it is determined whether or not the air conditioner has been operated from outside the house. When the air conditioner is operated without detecting a person in the room by the human detection means, it is determined that the air conditioner has been operated from outside the house. Of the operations of the air conditioner, only the operation for starting the operation when the operation of the air conditioner is stopped may be targeted.

  In step S61, as in step S51 of the second embodiment, if it is determined that the floor plan stored as the environment setting information is the same as the information detected by the camera, the process step is skipped and the process proceeds to END. . If it is determined that there is a difference between the floor plan stored as the environment setting information and the information that the space is detected by the camera, the process proceeds to step S62. In the third embodiment, steps S52 and S53 of the second embodiment are omitted, but may be added to the processing.

  In step S62, the external information terminal is notified that the air-conditioning operation has been started with the windows open. This notification may be notified in addition to the notification of the operation result when driving or may be notified alone.

DESCRIPTION OF SYMBOLS 10 ... Indoor unit, 12 ... Indoor unit, 14 ... Remote control, 22 ... Housing base, 24 ... Heat exchanger, 30 ... Left and right wind direction plate, 32 ... Up and down wind direction plate, 34 ... Front panel, 40 ... Air conditioner side control means , 42 ... external information terminal, 44 ... load, 46 ... indoor environment detection means, 48 ... drive control section, 50 ... storage means, 54 ... microphone, 56 ... voice recognition means, 58 ... speaker, 60 ... display section, 62 ... External information terminal side control means, 64 ... voice synthesis means, 66 ... arithmetic device, 81 ... notification setting, 82 ... monitoring condition, 83 ... monitoring time, 84 ... notification time zone

Claims (7)

An air conditioner that monitors and controls the conditioned room,
A human detection means for detecting a person in the room;
In the case where the monitoring condition is an occupancy monitor that monitors the conditioned room, the current time is the first time zone for monitoring the conditioned room, and the first is to determine the absence of a person during the operation of the air conditioner. When the person detection means does not detect a person continuously for two hours, the driving is stopped , and the driving is continued at other times .
When the monitoring condition is not the occupancy monitor, a person is detected by the human detection means continuously for a second time during which the air conditioner is operating regardless of the first time zone. An air conditioner provided with a control means that stops operation when not in operation and continues operation when a person is detected .   The air conditioner according to claim 1, further comprising time zone setting means for setting the first time zone.   The air conditioner according to claim 1, further comprising monitoring time setting means for setting the second time. An air conditioning system that monitors the conditioned room and controls the operation of the air conditioner,
A human detection means for detecting a person in the room;
Current time is a first time period to monitor the conditioning chamber, and performs counting when detecting no human in the person detecting means during operation of the air conditioner, detects a human in the person detecting means An air conditioner having monitoring means for resetting the time counted at times;
An external information terminal for operating the air conditioner,
When the monitoring condition is an occupancy monitor that monitors the conditioned room, when the second time for determining the absence of a person has elapsed after the time counted by the monitoring means has been notified ,
When the monitoring condition is not the occupancy monitor, a person is detected by the human detection means continuously for a second time during which the air conditioner is operating regardless of the first time zone. An air conditioning system for notifying the external information terminal when not in use . An air conditioning system that monitors the conditioned room and controls the operation of the air conditioner,
A human detection means for detecting a person in the room;
An air conditioner having a monitoring means that counts when no person is detected by the person detection means during operation of the air conditioner and resets the time counted when the person is detected by the person detection means;
An external information terminal for operating the air conditioner,
When the monitoring condition is an occupancy monitor that monitors the conditioned room, the time counted by the monitoring means has passed a second time for determining the absence of a person , and when the monitoring means starts counting Notifying the external information terminal when the time is the first time zone for monitoring the conditioned room ,
When the monitoring condition is not the occupancy monitor, a person is detected by the human detection means continuously for a second time during which the air conditioner is operating regardless of the first time zone. An air conditioning system for notifying the external information terminal when not in use .   The air conditioning system according to claim 4 or 5, wherein the external information terminal has time zone setting means for setting the first time zone.   The air conditioning system according to claim 4 or 5, wherein the external information terminal has a monitoring time setting unit for setting the second time.